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Olive brine
Savory & ferment· ferment vinegar

What it is
Olive brine is the salted liquid left in a jar or barrel of cured olives.
What it tastes like
On the nose: butter-fat, acid, pears, cheese. Among its measured molecules: propionic acid, ethyl propionate, propyl acetate, methyl acetate, guaiacol.
What goes with it
- Fermented strawberry juiceboth carry ethyl propionate, fruitycite
- Mezcalboth carry 1-propanolcite
- Aleboth carry 1-propanolcite
Salt and acid
Salt
Salt not measured yet.
Acid
Acid not measured yet.
Unusual pairings
Pairs the library can cite that almost nobody makes.
- Olive brine + Vodka
both carry isobutanol, musty (29 of 338 carry it)
- Olive brine + Fermented strawberry juice
both carry ethyl propionate, fruity (13 of 338 carry it)
- Olive brine + Honeydew melon
both carry propyl acetate, pears (7 of 338 carry it)
Every one of its 15 compounds carries a paper the library can cite.
acetic acidaromaacidreads as pungent (PubChem)Measured in 35 of 338 ingredients.cite
164.30 ± 8.64 µg/L in Cellina di Nardò brine and 36.31 ± 3.60 µg/L in Leccino brine at the end of fermentation, from 2.72 and 1.30 at day 30 — Bleve et al. 2014, Frontiers in Microbiology (Table 4, Fatty acids row 'Acetic acid', 180 days)butyric acidtasteacidreads as butter-fat taste (PubChem)Measured in 7 of 338 ingredients.cite
20 ± 2 to 900 ± 40 ppm in the eight brines that carry it at all; not detected in the other nine. It is a spoilage marker rather than a style note in this material — the paper records that samples with low salt develop an off-odour deriving from butyric and putrid fermentation, and the brine carrying nine hundred ppm of it is one of the low-salt samples. — Sab et al. 2021, Frontiers in Microbiology (Table 2, column 'Butyric acid (ppm)', the seventeen industrial brine samples; analysed by HS-SPME-GC-MS as one of the volatile acids)guaiacolaromaphenolreads as aromatic odor (PubChem)Measured in 15 of 338 ingredients.cite
22.91 ± 0.53 µg/L in Cellina di Nardò brine and 81.51 ± 3.22 µg/L in Leccino brine — the one compound in this table where the Leccino brine is several times the higher, and undetected in Leccino at both earlier sampling points — Bleve et al. 2014, Frontiers in Microbiology (Table 4, VOLATILES PHENOLS row 'Guaiacol', 180 days)lactic acidtasteacidreads as mild acid taste and does not overpower weaker aromatic flavors (PubChem)Measured in 8 of 338 ingredients.cite
1,914 ± 18 to 14,143 ± 79 ppm across seventeen industrial Spanish-style green-olive brines — the most abundant organic acid measured in every one of them, and a sevenfold spread between the weakest and the strongest brine — Sab et al. 2021, Frontiers in Microbiology (Table 2, column 'Lactic acid (ppm)', the seventeen industrial brine samples; extracted and analysed by HPLC per the Analysis of Sugars and Organic and Volatile Acids section)1-propanolaromaalcoholreads as burning taste (PubChem)Measured in 22 of 338 ingredients.cite
36.50 ± 2.40 µg/L in Cellina di Nardò brine and 3.45 ± 1.01 µg/L in Leccino brine at the end of fermentation — Bleve et al. 2014, Frontiers in Microbiology (Table 4, Alcohols row '1 propanol', 180 days)propionic acidaromaacidreads as sour & mildly cheese-like (PubChem)Measured in 3 of 338 ingredients.cite
35.01 ± 2.12 µg/L in Cellina di Nardò brine at the end of fermentation, undetected in that brine before 180 days and undetected in the Leccino brine throughout — Bleve et al. 2014, Frontiers in Microbiology (Table 4, Fatty acids row 'Propanoic acid', 180 days)sodium chloridetastereads as srp: salty (PubChem)Measured in 2 of 338 ingredients.cite
the olives whose brine volatiles are quantified here were placed in plastic vessels of 30 kg capacity filled with 20 L of 13% NaCl (wt/vol) — the brining strength of the fermentation this profile's aroma data comes from, stated by the paper as its own method rather than measured in the finished liquid — Bleve et al. 2014, Frontiers in Microbiology (Materials and methods, on the preparation of the Cellina di Nardò and Leccino fermentations whose brine volatiles are this profile's Table 4)isobutanolaromaalcoholreads as sweet, musty odor (PubChem)Measured in 24 of 338 ingredients.cite
15.82 ± 1.65 µg/L in Cellina di Nardò brine and 3.50 ± 0.44 µg/L in Leccino brine at the end of fermentation — Bleve et al. 2014, Frontiers in Microbiology (Table 4, Alcohols row '2 methyl-1-propanol', 180 days)methyl acetatearomaesterreads as pleasant odor (PubChem)Measured in 9 of 338 ingredients.cite
32.71 ± 1.13 µg/L in Cellina di Nardò brine and 16.80 ± 0.96 µg/L in Leccino brine, up from 3.76 and 3.50 at day 30 — Bleve et al. 2014, Frontiers in Microbiology (Table 4, Esters row 'Methyl acetate', 180 days)ethyl propionatearomaesterreads as fruity odor (PubChem)Measured in 4 of 338 ingredients.cite
96.97 ± 2.05 µg/L in Cellina di Nardò brine at the end of fermentation; not detected in that brine at 30 or 90 days and not detected in the Leccino brine at any sampling point — Bleve et al. 2014, Frontiers in Microbiology (Table 4, Esters row 'Ethyl propanoate', 180 days)propyl acetatearomaesterreads as odor of pears (PubChem)Measured in 5 of 338 ingredients.cite
91.70 ± 5.52 µg/L in Cellina di Nardò brine at the end of fermentation; absent from every other cell of that row — Bleve et al. 2014, Frontiers in Microbiology (Table 4, Esters row 'n-propyl acetate', 180 days)1-hexanolaromaalcoholreads as fatty, fruity (PubChem)Measured in 48 of 338 ingredients.cite
19.62 ± 2.85 µg/L in Cellina di Nardò brine and 21.98 ± 0.90 µg/L in Leccino brine — one of the few compounds present in both brines at all three sampling points — Bleve et al. 2014, Frontiers in Microbiology (Table 4, Alcohols row 'Hexan-1-ol', 180 days)ethyl acetatearomaesterreads as fragrant odor (PubChem)Measured in 42 of 338 ingredients.cite
226.97 ± 5.80 µg/L in Cellina di Nardò brine and 114.21 ± 9.43 µg/L in Leccino brine at the end of fermentation — the largest single volatile in both brines, from 33.71 and 21.26 at day 30 — Bleve et al. 2014, Frontiers in Microbiology (Table 4 (SPME/GC–MS quantitative data, including concentration (μg/L) ... of all the volatile compounds identified in Cellina di Nardò and Leccino brines), Esters row 'Ethyl acetate', 180 days)isoamyl acetatearomaesterreads as pear-like odor (PubChem)Measured in 26 of 338 ingredients.cite
27.22 ± 1.10 µg/L in Cellina di Nardò brine and 4.55 ± 1.03 µg/L in Leccino brine at the end of fermentation — Bleve et al. 2014, Frontiers in Microbiology (Table 4, Esters row 'Isoamyl acetate', 180 days)
Sources
- Bleve et al. 2014, Frontiers in Microbiology
- Sab et al. 2021, Frontiers in Microbiology